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Thread: 200MB Rollback Seg

  1. #1
    Join Date
    Aug 2000
    Location
    Shanghai
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    433
    The SYstem is only accessed by around 20 users and but it does have some large batch process .
    So the 4 rollback seg is created with 200 MB each . Then User
    never faced any problem on the rollback extends:-)

    My question is what's the harm to set the rollback seg bigger like that .

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    ligang1000@hotmail.com

  2. #2
    Join Date
    Jan 2002
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    Up s**t creek
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    Have you considered creating a seperate large rollback segment then assigning the batch transactions to that segment?

    I maintain a system with characteristics like yours, I have a large rollback segment which is offline during the day and then online overnight and each batch transaction is set to use that segment.

    Regards
    Jim
    Oracle Certified Professional
    "Build your reputation by helping other people build theirs."

    "Sarcasm may be the lowest form of wit but its still funny"

    Click HERE to vist my website!

  3. #3
    Join Date
    Aug 2000
    Location
    Shanghai
    Posts
    433
    Basically I don't want to create single large rollback for batch as it's involved some coding change .

    I just want to know what's the harm if I assign rollback seg like this .

    Till now , I have not faced any problems .
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    ligang1000@hotmail.com

  4. #4
    Join Date
    Apr 2001
    Location
    London
    Posts
    725
    I don't understand your logic.

    If it isn't broken, why try an fix it ?

    As long as your analysis of rollback segments proves that they are created optimally, there is no harm in making your RBS's larger.

    It is a waste of disk space if you ask me.
    Once you have eliminated all of the impossible,
    whatever remains however improbable,
    must be true.

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